package servlet;

import dao.CourseDao;
import pojo.Course;
import pojo.User;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebServlet("/course")
public class CourseServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public CourseServlet() {
        super();
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("UTF-8");
        HttpSession session = req.getSession();
        User user = (User) session.getAttribute("user");

        if (user == null){
            req.getRequestDispatcher("login.jsp").forward(req, resp);
        }else {
            String id = req.getParameter("id");
            CourseDao dao = new CourseDao();
            Course course = dao.findOne(id);
            session.setAttribute("course",course);
            req.getRequestDispatcher("course.jsp").forward(req,resp);
        }
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doGet(req, resp);
    }
}
